Kristen Graham

More Philadelphia public schools will be given to charter organizations in September, the district's fourth go-round in its "Renaissance Schools" process.

The district on Friday released a request for proposals for 2013-14 charter operators, no big surprise since officials have been saying for months that while they won't be authorizing any new standalone charters for next year, they like the Renaissance charter model and will continue to use it as a way to improve failing schools.

Officials said they would release the details of this year's crop of Renaissance schools on Feb. 11. A spokeswoman declined to say how many schools will be given to charters this year.